The Huayan ZX7-MA Operator's Manual provides safety guidelines, installation steps, operation instructions, maintenance tips, and troubleshooting for the…
This manual begins with safety precautions and work‑environment requirements, emphasizing protective gear, proper grounding, and hazard avoidance before any installation or operation. It then details the installation process, wiring, and grounding instructions for the three‑phase input power.
Subsequent sections cover the machine’s operation, adjustable current settings, maintenance procedures, technical specifications, spare‑parts list, and troubleshooting guidance, helping users achieve reliable welding performance and safe service.
| Input Power | 3 – 380V ±15% 50/60 Hz |
|---|---|
| Rated Welding Current | 250 A / 315 A / 400 A |
| Rated Duty Cycle | 35 % |
| Current Adjust Range | 20 – 250 A / 20 – 315 A / 20 – 400 A |
| Dimensions (L×W×H) | 446 mm × 250 mm × 430 mm (250MA model) |
| Weight | 20 kg / 24 kg / 28 kg |
The machine is rated for a 35 % duty cycle.
Read the manual, wear eye protection, flame‑resistant clothing, gloves, ensure proper grounding, and keep the work area free of fire hazards.
It accepts three‑phase input power from 3 V up to 380 V ±15 % at 50/60 Hz.
The series includes ZX7‑250MA, ZX7‑315MA, and ZX7‑400MA.